| Bulletin of the National Science Museum Series A (Zoology) | date of publication | 
          
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            | Bulletin of the National Science Museum Series A (Zoology) Volume 17 Number 1
 | March 1991 | 
          
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            |  | Jun ARAKI and Masaaki MACHIDA: | P.1 | 
          
            |  | A New Capillariid Nematode from a Boxfish of Sagami Bay, Japan |  | 
          
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            |  | Minoru IMAJIMA: | P.5 | 
          
            |  | Spionidae (Annelida, Polychaeta) from Japan. VI. The Genera Malacoceros and Rhynchospio |  | 
          
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            |  | Masatsune TAKEDA and Yukio NAKASONE: | P.19 | 
          
            |  | Three Leucosiid Crabs of the Genus Philyra from Okinawa, the Ryukyu Islands, with Description of a New Species |  | 
          
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            |  | Akihiko SHINOHARA: | P.25 | 
          
            |  | Pamphilius alternans (Hymenoptera, Pamphiliidae) and its Close Relatives |  | 
          
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            |  | Shun-Ichi UÉNO: | P.65 | 
          
            |  | A Second Species of Masuzonoblemus (Coleoptera, Trechinae) from Northern Taiwan |  |